$CHKIF SEC Filings

Filing Filed On
20-F 26 Apr 2013
FORM 6-K 26 Apr 2013
FORM 6-K 25 Apr 2013
FORM 6-K 19 Apr 2013
FORM 6-K 03 Apr 2013
FORM 6-K 27 Mar 2013
FORM 6-K 12 Mar 2013
SC 13G/A 14 Feb 2013
FORM 6-K 08 Feb 2013
FORM 6-K 05 Feb 2013
FORM 6-K 24 Jan 2013
FORM 6-K 14 Jan 2013
FORM 6-K 31 Dec 2012
FORM 6-K 27 Dec 2012
CT ORDER 21 Dec 2012
FORM 20-F/A 21 Dec 2012
FORM 6-K 06 Dec 2012
FORM 6-K 05 Dec 2012
FORM 6-K 23 Nov 2012
6-K 01 Nov 2012